Spring mounting for door closers



May 1955 A. J. JORGENSON 2,709,274-

SPRING MOUNTING FOR DOOR CLOSERS Filed April -16, 1954 IN VEN TOR.

ATTORNEYS United States Patent SPRING MOUNTING FOR DQOR CLOSERS Anton J.Jorgenson, St. James, Minn.

Application April 16, 1954, Serial No. 423,711

1 Claim. (Cl. 16-72) This invention relates to a spring mounting forscreen and storm doors, or for doors used for other purposes, and inparticular a bracket having an arcuate spring track adapted to bemounted on a door frame whereby with a conventional door spring extendedover the bracket and positioned with one end attached to a door hingedto the frame and the other attached to the bracket a resilient closingforce is applied to the door from a point spaced from the hinge thereof.

The purpose of this invention is to provide an improved mounting for adoor closing spring whereby the spring is spaced from the surface of thedoor and the possibility of forming grooves in the door is eliminated.

With the conventional door spring, one end of the spring is attached tothe door and the other to the frame and when the door swings to the openposition the spring rubs against the door eventually causing a groove inthe surface of the door and with the spring mounted in this manner theforce of the spring is applied directly toward the hinges of the door.With this type of mounting excessive loads are applied to the spring andwith the door passing over the center in the full open position thespring is required to use the edge of the door as a fulcrum in order tostart the closing movement of the door. With this thought in mind thisinvention contemplates a bracket having an outwardly extended arcuatetrack adapted to be mounted on a door frame at the hinged side of thedoor whereby with the spring trained over the bracket the force forclosing the door is applied from a point spaced outwardly from thehinge.

The object of this invention is, therefore, to provide means formounting a spring on a door, such as a screen or storm door, whereby thespring is supported in an outwardly extended position to provide tensionon a line of force extended from the free side of the door to a pointspaced outwardly from the hinges thereof.

Another object of the invention is to provide means for mounting a doorspring whereby it is impossible for the spring to come in contact withthe surface of the door.

A further object of the invention is to provide a door spring mountingbracket that is adapted to be supplied as a separate and independentunit and that may be used on doors now in use.

A still further object of the invention is toprovide a door closingspring bracket which holds a spring outwardly in spaced relation tohinges of a door in which the bracket is of a simple and economicalconstruction.

With these and other objects and advantages in view the inventionembodies a base plate having an arm extended from one end with anarcuate track, substantially semi-circular in cross section connectingthe extended end of the arm to the extended end of the base with a hookon the extended end of the base and with a spring trained over the trackwith one end connected to the hook and the other to the extended edge ofa door, hinged to a frame, on which the base plate is mounted.

Other features and advantages of the invention will appear from thefollowing description taken in connection with the drawing, wherein:

2,709,274 Patented May 31, 1955 "Ice Figure 1 is an elevational viewshowing a screen door in a door frame with a spring secured to the doorand trained over a spring mounting bracket positioned on the door frame.

Figure 2 is a. sectional plan taken on line 22 of Fig. 1 with the partsshown on an enlarged scale, showing the door in the open position, infull lines and in closed and partly closed positions in broken lines.

Figure 3 is an elevational view looking toward the arcuate track of thebracket and showing the device with part of the track broken away.

Figure 4 is a sectional plan through the bracket with the parts as shownin Fig. 3.

Figure 5 is a cross section through the extended end of the bracket,being taken on line 5-5 of Fig. 3.

Referring now to the drawing wherein like reference characters denotecorresponding parts the improved door spring mounting of this inventionincludes a bracket having a base 10 with an arm 11 extended outwardlyfrom one end, a track 12, arcuate in cross section, connecting theextended end of the arm to the end of the base opposite to that fromwhich the arm extends, the end of the track being connected to the basewith a flange 13 having an opening 14 extended therethrough and with theopening 14 positioned to register with a similar opening 15 in the base.

The extended end of the base is provided with a hook or finger 16 towhich one end of a spring 17 is attached and, as shown in Figure 2, theopposite end of the spring is attached to the inner surface of a door 18with a suitable fastener 19.

The bracket is attached to a jamb or side of a door frame, such as themember 20 with a screw 21 extended through the openings 14 and 15 andwith a screw extended through an opening 23 in the opposite end of thebase.

With the door mounted in the frame with hinges 24 it is resilientlyurged against a stop 25 in the member 26 at the opposite side of theframe by the spring and with the door in the open position, asillustrated in Figure 2, the force of the spring is applied from the endof the bracket whereby the door is adapted to be closed with a positiveswinging action.

The bracket may be positioned as shown in Figs. 1 and 2, however, itwill be understood that the bracket may be mounted at any other suitablepoint on the door. It will also be understood that the spring mountingmay be used on doors of any type or description.

It will be understood that modifications, withni the scope of theappended claim, may be made in the design and arrangement of the partswithout departing from the spirit of the invention.

What is claimed is:

A door closer comprising a bracket having a base with an arm extendedoutwardly from one end at right angles thereto and having an arcuatetrack, also arcuate in cross section, a flange on one end of the arcuatetrack for connecting the extended end of the arm to the end of the baseopposite to that from which the arm extends, a hook on the end of thebase outwardly of the connection of the arm to the base, and a springadapted to be trained over the track with one end attached to the hookon the base of the bracket and the opposite end attached to the face ofa door hinged to the frame upon which the bracket is positioned.

References Cited in the file of this patent UNITED STATES PATENTS1,010,071 Potter Nov. 28, 1911 1,721,308 Lormor July 16, 1929 1,736,784Glockler Nov. 26, 1929 2,024,919 Fredericks et al. Dec. 17, 1935

